Refrigeration



Nov. s, 192s;

, C. C. SPREEN REFRIGERATION Filed Feb. 21, 1927 KH/ L/ l k/// PIG. A

CHARLE: C. Snam INvENToR AT von NEYs PIG 5 4 i Patented Nov. 6, 1928. Y

UNITED STATES i PATENT GFFICE.

CHARLES c. SPREEN, oF DETROIT; MICHIGAN.

REFBIGERATION.

Application led February 21, 1927. Serial No. 169,758.

M invention rel atcs to refrigeration, and Walls and passing thrbugh all oli the plates 22. 40 particularly to means for increasing the ab- The plates in any of these embodiments sorbing power of the heat absorbing unit, and may be corrugated as shown in Figure 5. the particular object of my invention is to From the above diselosureit will be obvious provide new and improved means of this type. to those skilled in the art that I have pro- In the drawings accompanying this specificavided new and improved means tor increas- 45 tion and forming a part Aof this application I ing the absorbing power ot' a heat absorbing have shown, for purposes ot' illustration, unit in a mechanical refrigeration system. three forms which my invention may assume, At the same time it will be obvious to those and in these drawings: Y skilled in the art that the embodiment of the Figure 1 is a side elevation of one embodiinvention herein shown and described maybe 50 ment ot' my invention, While variously changed and modified without de- VFigures 2, 3, 4, and 5 are details of other parting from the spirit of my invention or embodiments of my' invention. sacrificing the advantages thereof, and it l5 The embodiment of my invention shown in therefore will be understood that the disf Figure 1 comprises a plurality of plates 11 closure herein is illustrative only, and that 55 having apertures 12 of a size to fit closely over my invention is not limited thereto. the body of an expander drum 13, of the Iclaim: usual float valvetype, disposed at spaced in- 1. In a mechanical refrigerating system, a

.20 tervals throughout the longitudinal extent cooling unit including a liquid refrigerant of the expander drum 13. The apertures12 container, a plurality of fins formed of sheet 60 ot the plate 11 are surrounded by flanges 14 .metal, said fins having apertures through for positioning the plates in planes at right which said container extends, and flanges on angles to the longitudinal axis of the exsaid fins removed from said container, said5 pander 13 and the plates serve to greatly inflanges surrounding apertures in said fins and crease the heat absorbing power of the exforming therewith a tray support. 65 Pandey 13, r 2. In a mechanical retrigerating system, a

In the embodiment of my invention shown cooling unit including a plurality of fins havin Figures 2 and 3 the plates 1'5 have apering spaced openings formed in two aligned tures 16 disposed laterally of the apertures 17 rows,fiangessurrounding one row of apertures engaging the expanderV 18 which receive and extending from each fin to the adjacent 70 sleeve-like ice tray supports 19. fin, and a container extending through the In Figure 4 the ice tray receiving means other row of apertures in said fins, said conare formed by flanges 20 surrounding the tainer supporting said fins and arranged in apertures 21 and .of such width that when the thermal Contact therewith.

plates 2 2 are assembled on the drum 13 the In testimony whereof I hereunto affix my 75 flanges of each plate engage the surface of the signature. adjacent plate whereby the several flanges l form a tubelike recess having continuous CHARLES C. SPREEN. 

